EN
AR
CS
NL
FR
DE
IT
JA
KO
PL
PT
RU
ES
UK
TH
TR
M450 Metal 3D Printer
The M450 is an industrial‑grade multi‑laser Selective Laser Melting (SLM) metal additive‑manufacturing system adopting powder‑bed laser melting technology. Equipped with four sets of laser‑scanning modules, it delivers a build envelope of 450×450×300 mm. The machine is well‑suited for large‑size part prototyping, new‑material process development and medium‑to‑small‑batch industrial production. Featuring a modular mechanical layout, integrated process monitoring, circulating gas purification and closed‑loop motion control, it serves aerospace, defense, automotive, mold‑making and research‑institute applications. It fabricates high‑density functional metal components with intricate internal cavities, lattice structures and conformal cooling channels which are difficult to produce via conventional manufacturing methods.
SLM Technical Features
 |
 |
- Multi‑laser Parallel Optical System: Multiple groups of 500 W fiber laser sources work in coordination with independent closed‑loop grating‑controlled galvanometers. Multi‑beam parallel scanning across the full build area greatly improves production throughput. Superior beam quality and adjustable focal depth guarantee consistent spot performance over the whole working field. Maximum scanning speed reaches 7 m/s per galvanometer.
- Robust Bi‑directional Recoating Mechanism: Bi‑directional variable‑speed recoating supports both high‑speed‑steel and silicone‑rubber blades. Integrated overload‑torque protection triggers immediate alarm and stop upon blade collision. Layer thickness is continuously adjustable from 20 μm to 400 μm to satisfy diverse accuracy and material requirements.
- Closed‑loop Powder‑bed Pre‑heating & Thermal Imaging Monitoring: DLS area‑source powder‑bed pre‑heating together with 30‑180 °C closed‑loop substrate heating effectively mitigates cracking for titanium and high‑temperature alloys. On‑board thermal‑imaging sensors record full thermal‑field data inside the chamber and generate complete process logs.
- Multi‑stage Explosion‑proof Gas Circulation & Purification System: Dual air‑outlet wind‑field quickly removes fumes and spatter particles. Three‑stage filtration consists of cyclone separator, H13 sintered plate filter and H13 fine filter with on‑line blow‑back function for extended filter service life. Chamber oxygen level is controlled ≤100 ppm with audio‑visual alarm upon threshold violation. Valves and pipelines are safely interlocked with chamber‑door status and oxygen readings to prevent dust ignition hazards.
- Fully‑independent Software Control System: Self‑developed slicing and path‑planning software with fully‑open process parameters. Supports STL import, support generation, multi‑mode filling and rotating scan‑angle strategies. Print‑job resume after interruption and real‑time parameter modification are available. Built‑in fault diagnosis with tri‑color audio‑visual alarm monitors oxygen level, temperature, recoating status, Z‑axis position and other critical process data, with full‑data archiving.
- Comprehensive Safety Protection: Dual mechanical‑electronic interlock for chamber doors meeting Class‑4 laser safety requirements. Emergency‑stop buttons, regulated power supply and static‑electricity‑dissipation design are implemented. Interface for Class‑D fire extinguisher complies with industrial safety specifications.
M450 Equipment Configuration
| Sub‑system | Key Components | Configuration Description |
|---|---|---|
| Optical System | Fiber Laser System | 4 × 500 W fiber lasers; output power adjustable 10%‑100% |
| Scanning Galvanometer | 4 sets high‑accuracy closed‑loop grating galvanometers with red‑laser beam indicator | |
| F‑θ‑theta Lens | Quartz focusing lens; focal depth ±5 mm adjustable | |
| Water‑cooling Unit | Dual‑temperature dual‑control chiller with closed‑loop protection via flow & temperature sensors | |
| Gas‑circuit System | Oxygen Sensor | Multi‑channel oxygen monitoring; alarm threshold ≤100 ppm |
| Chamber Purging System | Vacuum‑exhaust plus gas‑charging for active air replacement | |
| Argon Circulation Loop | Self‑developed dual‑outlet wind‑field design | |
| Multi‑stage Gas‑purification Unit | Cyclone separator + H13 sintered filter + H13 fine filter; on‑line blow‑back; explosion‑proof passivation treatment | |
| Forming System | Powder Feeding & Storage | Top‑feed design; optional automatic powder‑recycling unit; low‑powder alarm |
| Bi‑directional Recoater | Variable‑speed bi‑directional recoating; interchangeable high‑speed‑steel / silicone‑rubber blade; overload‑torque protection | |
| Sealed Build Chamber | High‑strength alloy housing, dual safety door interlock, internal LED lighting and real‑time monitoring camera | |
| Build Cylinder Assembly | Servo + grating‑ruler closed‑loop Z‑axis drive; DLS area‑source powder‑bed heating; 30‑180 °C closed‑loop substrate pre‑heating | |
| High‑rigidity Frame | Heavy‑duty industrial frame with dust‑proof shield for guide rails | |
| Control Software | Data‑processing & Slicing Software | Self‑developed; STL import; multi‑fill strategies; fully‑open process parameters; batch‑part processing |
| Machine‑control Software | Chinese UI; print‑resume function; real‑time monitoring; fault self‑diagnosis & audio‑visual alarm; complete process‑data archiving | |
| Optional Auxiliaries | Explosion‑proof Vacuum Cleaner, Powder Sieve Shaker, Vacuum Drying Oven, Powder‑cleaning Station, Sandblaster | For powder sieving, drying and post‑processing of printed parts |
M450 Performance Specifications
 |
 |
| Item | Specification |
|---|---|
| Model | M450 |
| Process | Selective Laser Melting (SLM / LPBF) |
| Maximum Build Volume | 450 mm × 450 mm × 300 mm (including substrate; substrate thickness ≥50 mm) |
| Dimensional Accuracy | L ≤100 mm: ±0.1 mm；L＞100 mm: ±0.1%×L |
| Layer Thickness | Continuously adjustable 20‑400 μm |
| Laser Configuration | 4 × 500 W fiber lasers, 1060 nm wavelength, M2 ≤1.1 |
| Scanning Speed | Max. 7 m/s |
| Spot Size | 70‑120 μm |
| Oxygen‑level Control | Build chamber ≤100 ppm |
| Substrate Pre‑heating Temperature | 30‑180 °C closed‑loop adjustable |
| Z‑axis Repeat‑positioning Accuracy | ≤±0.01 mm |
| Compatible Materials | Stainless steel, tool steel, titanium alloys, high‑temperature alloys, aluminum alloys (magnesium alloys excluded) |
| Total Power Consumption | Approx. 22 kW |
| Power Supply | AC380V±10%, three‑phase five‑wire system; ground resistance ≤5 Ω |
| Ambient Temperature | 15‑30 °C |
| Relative Humidity | ≤60% RH |
| Import Data Format | STL |
| Floor‑space Requirement | 6100 mm × 6000 mm (auxiliary equipment, door‑swing & operating space included) |
After‑sales Service
 |
 |
- Warranty Terms: 1‑year whole‑machine warranty and 1‑year laser‑system warranty starting from final‑acceptance signature. Lifetime repair service is provided. Free software upgrades are available within the warranty period.
- Fault Response: Remote response within 2 hours upon fault notification; on‑site engineer arrival within 24 hours for troubleshooting. Non‑human‑damaged components are replaced free‑of‑charge; new components restart their own warranty term.
- Technical Training: No less than 5 working‑days of comprehensive on‑site training after machine commissioning. Contents cover machine principle, model pre‑processing, slicing workflow, equipment operation, powder handling, part post‑processing and routine maintenance, enabling operators to run and maintain the system independently.
- Spare‑part Support: Full stock of consumables and wearing parts. Favorable spare‑part pricing after warranty expiration. Advance notification will be given for end‑of‑life critical components to secure procurement lead‑time for customers.
- Long‑term Technical Support: Continuous technical consultation for application and new‑material development. Complete paper and electronic documentation including operation manuals and maintenance manuals will be delivered.
